diff --git a/admin/tool/mobile/classes/api.php b/admin/tool/mobile/classes/api.php
index 921ad812998..80238d9c171 100644
--- a/admin/tool/mobile/classes/api.php
+++ b/admin/tool/mobile/classes/api.php
@@ -329,6 +329,11 @@ class api {
             $settings->supportpage = $CFG->supportpage;
         }
 
+        if (empty($section) || $section === 'graceperiodsettings') {
+            $settings->coursegraceperiodafter = $CFG->coursegraceperiodafter;
+            $settings->coursegraceperiodbefore = $CFG->coursegraceperiodbefore;
+        }
+
         return $settings;
     }
 
diff --git a/admin/tool/mobile/tests/externallib_test.php b/admin/tool/mobile/tests/externallib_test.php
index 00d75a6e939..d180c8e3187 100644
--- a/admin/tool/mobile/tests/externallib_test.php
+++ b/admin/tool/mobile/tests/externallib_test.php
@@ -234,6 +234,9 @@ class tool_mobile_external_testcase extends externallib_advanced_testcase {
         $expected[] = ['name' => 'supportemail', 'value' => $CFG->supportemail];
         $expected[] = ['name' => 'supportpage', 'value' => $CFG->supportpage];
 
+        $expected[] = ['name' => 'coursegraceperiodafter', 'value' => $CFG->coursegraceperiodafter];
+        $expected[] = ['name' => 'coursegraceperiodbefore', 'value' => $CFG->coursegraceperiodbefore];
+
         $this->assertCount(0, $result['warnings']);
         $this->assertEquals($expected, $result['settings']);